howes124

iTrader: (11)

i have just purchased some ver4 sti heads for my 1993 wrx, what else do i need to fit this so i have every thing ready for the change over, any advice would be appriecated. cheers steve

joz8968

iTrader: (13)

Keep all your 1993 stuff (except the heads, obviously).

Your existing 1993 inlet manifold bolts straight onto the v4 heads, so can keep all the ancilliaries, for the easiest, pain-free swap.

Speak to API David re HG thickness to use. I still think it'll be a 1.6mm one though...